# -*- coding = utf-8 -*-
# @TIME:2024/9/20 10:04
# @Author:月的第一话
# @File:dome.py
# @Software:PyCharm

# if 5>2:
#     print("5 is greater than 2")
#     print("22222")
# else:
#     print("5 is not greater than 2")
#
# age=30
# if age<=18:
#     print("未成年")
# elif age>18 and age<=30:
#     print("青年")
# elif age>30 and age<=50:
#     print("壮年")
# else :
#     print("你老了")
#
# year = int(input("请输入年份:"))
# if (year%4==0 and year%100!=0) or (year%400==0):
#     print("%d是闰年" % year)
# else:
#     print ("%d不是闰年"%year)


a = int(input("请输入a:"))
b = int(input("请输入b:"))
c = int(input("请输入c:"))
if a>b:
    if a>c:
        print("a大")
    else:
        print("c大")
else:
    if b>c:
        print("b大")
    else:
        print("c大")

num1 = float(input("请输入第一个数字"))
num2 = float(input("请输入第二个数字"))
op=input("请输入运算符:")
if op == "+":
    print(num1 + num2)
elif op =="-":
    print(num1 - num2)
elif op =="*":
    print(num1 * num2)
elif op == "/":
    print(num1 / num2)
